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Viewing changes to erts/emulator/drivers/common/ram_file_drv.c

  • Committer: Bazaar Package Importer
  • Author(s): Sergei Golovan
  • Date: 2009-02-15 16:42:52 UTC
  • mfrom: (1.1.13 upstream)
  • Revision ID: james.westby@ubuntu.com-20090215164252-dxpjjuq108nz4noa
Tags: 1:12.b.5-dfsg-2
Upload to unstable after lenny is released.

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erts/emulator/drivers/common/ram_file_drv.c
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#define BFILE_BLOCK  1024
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#define get_int32(s) ((((unsigned char*) (s))[0] << 24) | \
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                      (((unsigned char*) (s))[1] << 16) | \
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                      (((unsigned char*) (s))[2] << 8)  | \
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                      (((unsigned char*) (s))[3]))
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#define put_int32(i, s) {((char*)(s))[0] = (char)((i) >> 24) & 0xff; \
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                        ((char*)(s))[1] = (char)((i) >> 16) & 0xff; \
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                        ((char*)(s))[2] = (char)((i) >> 8)  & 0xff; \
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                        ((char*)(s))[3] = (char)((i)        & 0xff);}
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#define get_int16(s) ((((unsigned char*)  (s))[0] << 8) | \
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                      (((unsigned char*)  (s))[1]))
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#define put_int16(i, s) {((unsigned char*)(s))[0] = ((i) >> 8) & 0xff; \
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                        ((unsigned char*)(s))[1] = (i)         & 0xff;}
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#define get_int8(s) ((((unsigned char*)  (s))[0] ))
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#define put_int8(i, s) { ((unsigned char*)(s))[0] = (i)         & 0xff;}
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typedef unsigned char uchar;
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static ErlDrvData rfile_start(ErlDrvPort, char*);
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    ErlDrvPort port;    /* the associcated port */
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    int flags;          /* flags read/write */
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    ErlDrvBinary* bin;  /* binary to hold binary file */
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    uchar* buf;         /* buffer start (in binary) */
 
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    char* buf;          /* buffer start (in binary) */
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    int size;           /* buffer size (allocated) */
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    int cur;            /* current position in buffer */
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    int end;            /* end position in buffer */
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}
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static int ram_file_write(RamFile *f, uchar *buf, int len, 
 
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static int ram_file_write(RamFile *f, char *buf, int len, 
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                          int *location, int *error)
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{
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    int cur = f->cur;
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    if ((bin = driver_alloc_binary(usize)) == NULL)
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        return error_reply(f, ENOMEM);
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    outp = (unsigned char*)bin->orig_bytes;
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    inp = f->buf;
 
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    outp = (uchar*)bin->orig_bytes;
 
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    inp = (uchar*)f->buf;
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    while(len > 0) {
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        int c1, c2, c3;
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    if ((bin = driver_alloc_binary(usize)) == NULL)
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        return error_reply(f, ENOMEM);
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    outp = (unsigned char*)bin->orig_bytes;
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    inp  = f->buf;
 
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    outp = (uchar*)bin->orig_bytes;
 
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    inp  = (uchar*)f->buf;
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    while(len > 0) {
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        if ((n = uu_decode(*inp++)) < 0)